Live quiz Cloud Computing Quiz 37

Q.1 All of the following accurately describe Hadoop, EXCEPT

• Open source

• Java-based

• Real-time

• Distributed computing approach

Q.2 Hadoop can be used to create distributed clusters, based on commodity servers, that provide low-cost processing and storage for unstructured data

• False

• True

Q.3 Which of these provides a Stream processing system used in Hadoop ecosystem?

• Hive

• Solr

• Spark

• Tez

  
  

Q.4 HDFS allows a client to read a file which is already opened for writing?

• False

• True

Q.5 Which among the following are the features of Hadoop

• Open source

• Fault-tolerant

• High Availability

• All of the above

Q.6 Which statement is true about Safemode

• It is a maintenance state of NameNode

• In Safemode, HDFS cluster is in read only

• In Safemode, NameNode doesn’t allow any modifications to the file system

• All of the above

Q.7 What are the advantages of 3x replication schema in Hadoop

• Fault tolerance

• High availability

• Reliability

• All of the above

Q.8 Is it possible to provide multiple inputs to Hadoop?

• Yes

• No

9. Which of the following is the true about metadata?

• A. Metadata shows the structure of HDFS directories/files

• B. FsImage & EditLogs are metadata files

• C. Metadata contain information like number of blocks, their location, replicas

• D. All of the above